The LED indicators for the VP4-2330 are mounted on the circuit board inside the
device, and are viewable through the vent slots in the case. The two blue LEDs are
power indicators. There are two power supplies in the VP4-2330, and both are
necessary for proper operation.
The four LEDs toward the bottom are status and communications - primarily used for
communications. The green LED to the left indicates token passing. This LED flashes
each time the token is passed. The red LED is the error indicator which flashes red
when there is an error, such as request for an object that does not exist in the device.
The yellow indicator flashes each time the VP4-2330 polls for master. The green LED
to the right flashes each time a data request is replied to.
The yellow poll-for-master LED may flash quite frequently, or nearly never. How often
the device polls for master depends on whether there is another master at some
higher MAC address after the VP4-2330. If the next consecutive MAC address is in use
by another device on the link, the poll for master will rarely flash. If the VP4-2330 has
a low MAC address and there are few or no other devices with higher MAC addresses,
the poll for master LED will be quite busy.
The token pass led (green LED on left) should always be flashing. If there is a small
number of devices on the network, it will flash rapidly. The more devices there are on
the network, the more slowly it will flash because there are more devices passing the
token around. If it never flashes, there is a communication problem, such as baud rate
mismatch.
The red LED is a communication error indicator most of the time. However, during
restart it will be on solid. Immediately following startup, it may flash a fault code if a
serious error has occurred.
2.7 Indicators on the MTX002 USB to MS/TP Adapter
2. Installation and Connections
file:///C:/AAA_CSI/Literature/2016 User Guides/VP4-BACnet User Gui...
8 of 9
11/3/2016 10:39 AM
Содержание ValuPoint 4
Страница 22: ...3 Connect file C AAA_CSI Literature 2016 User Guides VP4 BACnet User Gui 6 of 6 11 3 2016 10 40 AM ...
Страница 28: ...4 Who Is file C AAA_CSI Literature 2016 User Guides VP4 BACnet User Gui 6 of 6 11 3 2016 10 40 AM ...
Страница 33: ...Page 3 of 5 6 Device Page 8 16 2017 mk MSITStore C AAA_CSI Literature 2016 20User 20Guides VP4 BACnet 20Us ...
Страница 56: ...9 Object Map List file C AAA_CSI Literature 2016 User Guides VP4 BACnet User Gui 6 of 6 11 3 2016 10 42 AM ...